Number > Percentages > 90-Reverse percentages > Quiz 2 X
4 X
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The price of a vase was increased by 4% to £22. What was the price before the increase? Give
your answer to the nearest penny.

the answer is a if my teacher taught me correct

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)